Automobile heater



J. r N. PENA AUTOMOBILE HEATER 3 Sheets-Sheet 1 Filed Feb. 27, 1.941

Inventor A Home m msi May 19 320 J. N. PENA AUTOMOBILE HEATER Filed Feb.27, 1941 3 Sheets-Sheet 2 ZEWQQ? Mail? 5 1942, J. N. PENA AUTOMOBILEHEATER 3 Sheets-Sheet 3 Filed Feb. I 2'7, 1941 A No me Patented May 5,1942 UNITED STATES PATENT OFFICE AUTOMOBILE HEATER.

Juan N. Pefia, Las Vegas, N. Mex.

Application February 2'7, 1941, Serial No. 388,938

2 Claims. (Cl. 257-241) This invention relates to automobile heaters andmore particularly to such heaters as are generally attached to theexhaust manifold of an internal combustion for utilizing the heat of theexhaust gases for supplementing the normal heat of the water in thecooling system as it circulates between the cooling system and theradiator heater of the automobile.

An object of the present invention is to improve generally upon suchtypes of heaters; the object, intent and purpose of the invention beingto provide a device of this character which may be readily interposedbetween the exhaust manifold and the exhaust conduit of the internalcombustion engine, and also readily connected with the water system forsupplying water to the radiator of the automobile heater at atemperature which will be effective for raising the temperature in theinterior of the automobile body.

The invention together with its objects and advantages will be bestunderstood from a study of the following description taken in connectionwith the accompanying drawings wherein:

Figure 1 is a view showing generally the application of the invention.

Figure 2 is a horizontal sectional view taken substantially on the line2-2 of Figure 1.

Figure 3 is a vertical sectional view taken substantially on the line 33of Figure 2.

Figure 4 is an end elevational view of the water heater, and

Figure 5 is a vertical sectional view taken sub stantially on the line5-5 of Figure 3.

Referring more in detail to the drawings, it will be seen that inaccordance with the present invention, the preferred embodiment thereofconsists of a water heater indicated generally by the reference numeral5 and adapted to be connected, as shown, and hereinafter more fullydescribed, with the internal combustion engine, the water cooling systemof the engine, and the radiator of a conventional automobile heater forsupplementing the normal heat of the water in the cooling system bycausing the water in the cooling system to absorb heat from the exhaustgases as the water passes to the radiator of the automobile heater.

In the embodiment illustrated, the heater 5 embodies a casing 5 ofsuitable dimensions and design and formed with an internal integralformation 6 that forms a heating chamber opening through one side of thecasing 5- as at I, and as clearly shown in Figure 5.

For mounting the casing 5 of the water heater, there is provided abracket 8 in the form of a single casting that embodies a tubularsection 8 adapted to be interposed in the connection between the exhaustmanifold III of the internal combustion engine II and the exhaust pipel2 as shown in Figure 1. To this end the tubular part 9 of the bracket 8is provided at its respective opposite ends with apertured flanges I3through the medium of which and bolts or other suitable fasteningelements the tubular part 9 of the bracket is secured in the connectionbetween the exhaust manifold I0 and the exhaust pipe i 2.

The bracket 8 also embodies a substantially hollow formation l4 thatforms a by-pass opening at its respective opposite ends into the bore ofthe tube 9 adjacent the upper and lower ends of the tube, andintermediate said ends having an opening 15 that registers with theopening 1 provided in the side of the casing .5 for the heating chamber8.

At the opening 15 the bracket 8 is provided with an apertured flange I8through the medium of which and bolts or other fastening elements H the:racket 8 is secured to the water heater casing The casing 5 of thewater heater 5 receives water from the circulating system of theinternal combustion engine through the medium of a hose connection l8between the water pump l9 of the internal combustion engine and anintake nipple 20 that extends down into the casing 5 from the topthereof as shown in Figures 1 and 3.

The heated water from the casing 5 of the water heater is delivered tothe radiator of a conventional automobile heater 2| through the mediumof a flexible hose 22 that at one end thereof is connected with anoutlet nipple 23 that projects upwardly through the top of the heatercasing 5, and at its opposite end is connected to the inlet nipple 24 ofthe radiator of the heater 2!.

The outlet nipple of the radiator of the heater 2| is connected with thewater circulating system of the internal combustion engine through themedium of a return conduit 25 as shown in Figure 1.

From the description of the invention thus far it will be seen that theheat of the exhaust gases diverted into the heating chamber 6 will serveto materially raise the temperature of the water in the casing 5 andwhen the water in the casing 5 is heated sufficiently, circulation ofthat water is induced; the water flowing through the hose connection orconduit 22 into and through the radiator of the automobile heater 2| andfrom which the heat is distributed into the vehicle to be heated by theusual fan (not shown) and which forms a part of such heater 25.

For controlling the supply of the exhaust gases to the heating chamber5, or for sending the exhaust gases around the heater as desired, thereis provided in the by-pass it a butterfly valve pivoted as at 26', andoperable from the instrument board of the vehicle by means of a link 2?connecting the crank arm of the valve pivot 26' with the crank arm of anoperating shaft and a control rod 29 that is connected at one endthereof to a second crank arm on the aioremen tioned shaft it). Theshaft 28 is iournaled in suitable bearings at provided therefor on thetop of the water heater casing Thus it will be seen that when the valveis in the position suggested by full lines in Figure 5,

exhaust gases will pass into the heating chain her at for heating thewater in the casing 50; of the heater 5, and when the valve 2G is in theposition indicated by broken lines in Figure 5, the exhaust gases areshunted around the heater so as to pass directly through the tubular memher 9 of the bracket 28 from the exhaust manifold it to the exhaust pipei 2. v

It is thought that the manner of installation, the operation, andutility and advantages of an automobile heater embodying the features ofthe present invention will be had by those skilled in the art withoutfurther detailed description thereof.

It is also to be understood that while I have herein illustrated anddescribed the preferred embodiment of the invention, I claim all suchforms of the invention to which I am entitled in view of the prior artand scope of the appended claims.

Having thus described the invention what is claimed as new is:

1. In a device for utilizing the heat of the exhaust gases of aninternal combustion engine for supplementing the normal heat of thewater in the cooling system when the water is being supplied to theradiator of an automobile heater, the combination of a bracket having atubular conduit part adapted to be interposed in the connection betweenthe exhaust manifold and exhaust pipe of an internal combustion engineto provide a through passage from the exhaust manifold to the exhaustpipe, and a casing embodying a water-receiving chamber adapted to beconnected in the cooling system of an internal combustion engine betweensuch system and the radiator of an automobile heater, said casing havinga recess in one wall of a depth to ex aesaoe'i' tend inwardly beyond thecenter of the casing to form an internal heating chamber; said brackethaving an integral formation substantially curved in the direction ofthe length of the aforementioned tubular conduit part of the bracket andprovided throughout its length with a bore adapted to serve as a by-passfor exhaust gases and opening at its respective opposite ends laterallyinto the said tubular conduit part of the bracket; said formationintermediate the respective opposite ends thereof being provided withflanged neck aiigning with the recess of said heating chamber andsecured to the edges of said recess to admit exhaust gases from theby-pass into the chamber.

2. in a device for utilizing the heat of the exhaust gases of aninternal combustion engine for supplementing the normal heat of thewater in the cooling system when the water is bein supplied to theradiator of an automobile heater, the combination of a bracket having atubular conduit part adapted to be interposed in the connection. betweenthe exhaust manifold and exhaust pipe of an internal combustion engineto provide a through passage from the exhaust manifold to the exhaustpipe, and a casing embodying a water-receiving chamber adapted to beconnected in the cooling system of an internal combustion engine betweensuch system and the radiator of an automobile heater, said casing havinga recess in one wall of a. depth to extend inwardly beyond the center ofthe casing to form an internal heating chamber; said bracket having anintegral formation substantially curved in the direction of the lengthof the aforementioned tubular conduit part of the bracket and providedthroughout its length with a bore adapted to serve as a by-pass forexhaust gases i and opening at its respective opposite ends laterallyinto the said tubular conduit part-of the bracket; said formationintermediate the respective opposite ends thereof being provided with aflanged neck aligning with the recess of said heating chamber andsecured to the edges of said recess to admit exhaust gases from thebypass into the chamber; and a valve pivotally JUAN N. PESIA.

